Sakai SW880-1, Shop Manual

Page: 159 / 428

6-032
VIBRATORY DRUM
13-7) Preload adjustment of roller bearing
①
Install a shim (26) of about 1 mm (0.08 in.) on the axle
shaft and install the cover (29). The shim provides a
clearance between the end face of the axle shaft and the
inner surface of the cover (29).
Tighten the four bolts (28) with washers to a torque of 108
N·m (80 lbf·ft).
Give the housing (15) two to three turns and tighten the
bolts to a torque of 108 N·m (80 lbf·ft) again.
Repeat this work several times until the tightening torque
of the bolts no longer fluctuates.
(NOTICE)
Tighten four of the eight bolts (28) alternately in the
diagonal directions.
(NOTICE)
Push in the inner race while rotating the bearing.
Otherwise, even strongly trying to push the inner
race, the bearing rollers will not be pushed up and
therefore bearing will not be seated.
②
Remove the four bolts (28).
Remove the cover (29) and shim (26).
•
•
•
•
•
•
26
28
15
29
Clearance
SW800-06079
26
28
15
29
Clearance
SW800-06079
SW800-06080
End of rollers in close
contact with inner race shoulder
Gap
Gap
(1) Bearing not
seated (2) Bearing correctly
seated
SW800-06080
End of rollers in close
contact with inner race shoulder
Gap
Gap
(1) Bearing not
seated (2) Bearing correctly
seated
SW800-06081
28
29
26
SW800-06081
28
29
26